MAKE AN OFFER. THE MORE YOU BUY THE BETTER DEAL I WILL ACCEPT The postcard features a picture of the western facade of the cathedral in Quimper. Quimper is a city located in Brittany, France, known for its well-preserved medieval architecture. The cathedral, known as Cathédrale Saint-Corentin de Quimper, is a Gothic-style building dating back to the 13th century.